Gaois

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  1. SCIENCE|natural and applied sciences|life sciences|biology

    #619367

    IATE #1109089
    nascáil ghéiniteach Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    genetische Verbindung | Genkoppelung | Koppelung | Kopplung | Koppelung der Gene
    de
    genetic linkage
    en
    Definition "tendency of DNA sequences that are close together on a chromosome to be inherited together during the meiosis phase of sexual reproduction as an exception to Mendel's Law of Independent Assortment" Reference "COM-Terminology Coordination, based on: 'Genetic linkage' (14.4.2021)"
    Comment "Genetic linkage is often defined, from a molecular viewpoint, as the tendency of alleles carried by the same DNA molecule to be inherited together. However, if two genes are very far apart on a very long DNA molecule, linkage may not be observed in practice. In this example, consider a long chromosome, carrying all five genes, A, B, C, D, and E. It can be observed that A is linked to B and C, and that C and D are linked to E, but that no linkage is observed between A and E (Fig. 2.24). Given that A is on the same DNA molecule as B and that B is on the same DNA molecule as C, etc., it can be deduced that A, B, C, D, and E must all be on the same chromosome. In genetic terminology, it is said that A, B, C, D, and E are all in the same linkage group. Even though the most distant members of a linkage group may not directly show linkage to each other, their relationship can be deduced from their mutual linkage to intervening genes."
    linkage génétique | jumelage génétique | couplage génétique | liaison génétique | liaison factorielle | linkage | liaison | liaison des gènes
    fr
    Definition 1) Association de gènes qui ont tendance à rester unis dans la descendance au lieu de monter la ségrégation indépendante conforme à la troisième loi de Mendel 2) 1) association de gènes non-alléliques qui tendent à être transmis ensemble car localisés sur le même chromosome 2) tendance manifestée par deux ou plusieurs gènes (gènes liés, gènes associés) à rester ensemble dans le même chromosome, d'une génération à l'autre, plus fréquemment qu'on ne pourrait l'attendre de la loi des assortiments indépendants; association de gènes qui manifestent une tendance à rester réunis dans la descendance au lieu de montrer la ségrégation indépendante conforme à la troisième loi de Mendel Reference METRO